The Ballast shower base makes installation simple, whether you're remodeling your bathroom or planning for new construction. The ultra-low threshold creates a sleek appearance and eases getting in and out of the shower, while durable resin concrete core construction provides a solid, quality feel underfoot. A smart alternative to tile, this one-piece shower base offers easy maintenance and less risk of leakage. Low-threshold design for easy entry and exit. Single threshold for alcove installation with integral tile-in flange. Durable acrylic with resin concrete core construction. Center drain. Allows for quick and easy mortar-less installation.